What are the uses of cow dung?

In everyone's impression, cow dung may be posted outside the yurt to make fuel. in fact, cow dung has many uses now. in the past, it was used as fertilizer to grow vegetables and cash crops, which can achieve high benefits and turn dung into treasure. Cow dung can also be used as base fertilizer at a price of 300 yuan per ton. Cow dung can also be used as a feed additive to raise pigs, fish, chickens and so on, and with the development of technology, the use of cow dung fermentation for power generation has become a new direction.

Cow manure can be used as base fertilizer.

Cow dung is a very good organic fertilizer, and many farmers use it as fertilizer, and the effect is quite good. When applying it, we should pay attention to the following points:

The main results are as follows: 1. The cow dung must be rotten and decomposed before use, otherwise the heat released during fermentation may harm the plant and introduce germs into the soil.

2. It is advocated to be base fertilizer and ditch application. The fertilizer release of cow manure is usually slow, and its salt content is generally high, so it is suitable to be used as base fertilizer, suitable for ditch application and covering soil after application.

If it is used for sprinkling on the surface, the dosage should be controlled and the concentration must not be too high, so as to avoid fertilizer damage to the plant.

Fermented cow manure can raise pigs.

Raising pigs with cow dung is not only low cost, but also easy to operate. As long as you master the technology, one person can feed 30 to 40 pigs. The method of raising pigs with fermented cow dung is as follows:

1. Mix the dried cow dung and chaff evenly and put in the baking powder. The amount of fermentation powder depends on the temperature. At 25 degrees Celsius, put 500 grams of baking powder for every 50 kilograms of cow dung and 50 kilograms of coarse bran.

2. After 2 to 3 days of stacking and fermentation, cow dung changes from black to yellow and can be used to feed pigs when it gives off the smell of alcohol.

Cow dung can be used to grow mushrooms.

Wang Liwu, deputy mayor of Taobei District, Baicheng City, found that due to the rapid development of cow farming in Taobei District, no one used cow dung all over the street, mainly because the grass seeds contained in cow dung would produce a large number of weeds in the crops. so growers generally don't use cow dung as fertilizer. Using cow dung as raw material for edible fungus cultivation, the high temperature of the material pile in the fermentation process can kill the grass seeds in cow dung, and the waste mushroom rods produced are rare organic fertilizers, especially in paddy fields.

The test and demonstration proved that the edible fungus produced by using cow dung as raw material tastes good, the quality is significantly improved, and the successful mushroom rate of bacteria sticks is also significantly increased, reaching more than 98%. Compared with the traditional use of wheat bran, soybean meal and corn flour as raw materials, the average production cost of each bacterial stick is reduced by about 40%, and the output is increased by more than 50%. The economic benefit is very considerable.

Cow dung can be used to produce seedling soil.

Cow manure production seedling soil comprehensively utilizes livestock and poultry manure and crop straw, produces cultivation substrate and bio-organic fertilizer, reduces environmental pollution, and can meet the needs of 200000 mu protected vegetable seedlings in Ningxia and its surrounding provinces. According to Feng Xihong, the project host, at present, the seedling soil produced by cow dung fermentation sells well, with annual sales of more than 200000 packets throughout the northwest region, and Yinchuan has a market share of 50%.

Cow dung can be used to grow vegetables

There is a vegetable processing company and a milk factory in Sangzhuang Village, Fushan Town. The processed vegetable products are exported to the United States, Canada and other places. Villagers feed organic vegetable leaves and processed waste to cows as green feed, and then use cow manure to make fertilizer and return it to the field for organic vegetable production, which alone increases the village's annual income by more than 3.5 million yuan. Dongshu Town has nearly 40, 000 mu of grain fields, of which each mu of corn produces about 1500 kg of straw. Coincidentally, a cow in the town's dairy farming park eats about 6000 kg of silage a year, which requires a total of 18 million kg. As a result, more than 20, 000 mu of corn straw has been turned into treasure. finally, the environmental pollution caused by burning was avoided.

Cow dung biogas can be used to generate electricity.

According to the farm technician, the cow dung was shoveled into the separator with a forklift, and the separator separated the sediment, firewood and grass, and then put it into the soaking tank after a certain period of time, and then beat it from the soaking tank to the mixing tank after adjusting it to a certain concentration. then use our numerical control equipment, regular and quantitative into the biogas fermentor, the blue one is the biogas fermentor, we use medium-temperature fermentation in high-temperature fermentation. The biogas produced by fermentation is stored in the white gas holder above, and then transported downward by pipeline to the electrochemical system, where the biogas is desulphurized and dehydrated, removed from carbon dioxide, and then piped to the generator for biogas power generation.